What is this “domain of darkness” the Bible talks about? Is this darkness merely sin, or should it also be thought of as a state of lawlessness? Actually, sin and lawlessness are one and the same(1 John 3:4).

It’s helpful to see that sin, by its very nature, is a shunning of God’s law. The citizens of the kingdom of darkness are those who rebelliously make sin the practice of their life. They spurn what they know of God, willfully choosing the opposite of His revealed law—or at least carefully skirting it.

They live in rebellion against God. And yes, without Christ, even those who are considered to be good people fall into this category.